Medway · England
Window & door mastic in Tunbridge Hill, Medway
Window mastic in Tunbridge Hill from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Cracked internal joints between frame and plaster
- Mastic that has split away from the wall
- Mastic that is falling out in pieces
Questions from Tunbridge Hill
Do you work for landlords with property near Gillingham (Kent) station?
Yes. We work for landlords and letting agents as well as householders, and several properties can be quoted together. You can phone 0345 464 0079 or email us with the details for a clear quote.
Will you come out to Tunbridge Hill?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Do the sealants smell?
That depends on the sealant. Some products have a noticeable smell, others very little.
What do you put in the joint?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We explain the product when we quote.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator and we are fully insured too.
Can you seal over the old sealant?
No, it will not last. It can look neat for a few weeks, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
Will the old sealant be removed?
Yes, every time. New sealant will not bond properly to old, so the joint is cleaned back first.
Can I do it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Window mastic for homes and businesses in Tunbridge Hill
The mastic around a window or door seals the gap between the frame and the wall. When it cracks, hardens or pulls away, draughts and rain get in. The old mastic is removed and the joint resealed with a flexible exterior sealant. We work on window sills, patio & French doors and aluminium frames, and people most often call us about rain getting in at the frame or under the sill and gaps where the sill meets the wall.
Somewhere as small as Tunbridge Hill, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we will put it right.
- Location
- Tunbridge Hill (ME3)
- Region
- Medway
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Can I do it myself?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Common problems we fix in Tunbridge Hill
Frames are never completely still. A plastic or aluminium frame lengthens in sunshine and shortens as it cools, while the masonry beside it stays put. If the sealant cannot stretch, it splits.
People normally contact us after spotting something like this:
- Draughty joints inside around the window
- A bead that doesn’t match the frame
- Mastic that’s falling out in pieces
- Cracked sealant at the sill ends
For site and facilities teams at buildings such as The Hundred of Hoo Academy, larger buildings have plenty of frames, and the mastic around each one ages.
Questions to ask before booking
- What the quote includes, VAT included or not
- What happens if the job turns out different
- Who does the work, and how experienced they are
- How the joint is cleaned and prepared
Why act early in Tunbridge Hill
Redecorating is a good moment to renew the mastic. Fresh joints finish the job neatly. Older cottages and farmhouses around Tunbridge Hill can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference.
Why Tunbridge Hill customers choose us
- Homes, businesses and hotels
- We never seal over old sealant
- A 12-month guarantee on all work
- 180+ five-star Google reviews
See our cost guide and what customers say.
Tunbridge Hill homes and the weather
Tunbridge Hill is within about 1 mile of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Rented homes near Gillingham (Kent) station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints.
Tunbridge Hill is about 5 miles north of Gillingham, in Medway. Every kind of property in Tunbridge Hill is covered for window mastic, old or new, large or small. Every job comes with our 12-month guarantee. Tunbridge Hill is one of 68 places in Medway where we work. We also work in Chelmsford, around 21 miles away.
Jobs for window mastic in ME3 works the same way as everywhere else we cover. Nearby, we also carry out window mastic in Kingsnorth (1 mile south), Fenn Street (1 mile north-west), Sharnal Street (1 mile north-west), St Mary Hoo (2 miles north) and High Halstow (2 miles north-west). Further out, we also cover Gillingham (5 miles south), Chatham (6 miles south-west), Rochester (5 miles south-west), Rainham (5 miles south), Strood (6 miles south-west) and Luton (5 miles south-west).
Landmarks near Tunbridge Hill
Tunbridge Hill’s nearest station is Gillingham (Kent) station, roughly 3.9 miles south-west. Well-known places in the area include Medway Maritime Hospital (4.5 miles south-west) and Upnor Castle (3.6 miles south-west). Green spaces nearby include Bishop Saltings.
What affects the cost of window mastic
Jobs vary more than people expect. The main factors:
- How many rooms, windows or areas are involved
- Any working-time requirements on site
- The product the joint needs
- The number and length of the joints
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
What we need to know
There’s no need for technical detail. It helps if you can tell us:
- How we’d reach the joints
- Whether it has been sealed before
- What’s wrong with the joints now
- A few pictures by email, if you can
It all starts with a short chat. Describe the problem, the location and the size of the job, and we will explain how we’d tackle it. When it suits you, phone 0345 464 0079 or drop us an email.
How to look after the new joints
Looking after new joints is easy:
- Keep paint and stain on wooden frames in good order
- Ventilate rooms so frames do not stay wet inside
- Keep drainage slots and sill grooves clear
- Paint up to the joint, not over it
Keep sill grooves and drainage slots clear, so water can run away instead of sitting against the joint.
Water trapped behind a failed joint can start rot in timber frames and sills. Rotten timber needs a joiner, not a sealant, so early resealing is worth it.
What sealant work can’t fix
We’d rather tell you now than do work that won’t last, so these are the limits:
- Damp coming through the wall itself rather than the frame joint
- Misting between the panes of a double-glazed unit (that needs a new unit)
- A frame that has rotted at the joint
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we’ll tell you honestly.
Where we work in Tunbridge Hill
- Composite doors
- Aluminium frames
- uPVC windows
- Timber windows & doors
- Patio & French doors
- Window sills
Towns and villages near Tunbridge Hill
Other services in Tunbridge Hill
How it works
On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The work itself takes a few hours for a handful of frames, longer for a whole house, including the tidy-up. Somewhere as small as Tunbridge Hill, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each frame is looked over and we agree which ones need resealing.
- We remove the old mastic and clean the frame edge and wall.
- Where the gap is deep, backing rod goes in first.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- We tool each bead neatly and check every joint is closed.
Before we arrive
- Mention any parking rules near the property
- Tell us about any water getting in
- Clear the area around the work
Ask for a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved and send you a clear quote.